EP2605923B1 - Air strut with elastic piston mounting - Google Patents

Air strut with elastic piston mounting Download PDF

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Publication number
EP2605923B1
EP2605923B1 EP11727664.2A EP11727664A EP2605923B1 EP 2605923 B1 EP2605923 B1 EP 2605923B1 EP 11727664 A EP11727664 A EP 11727664A EP 2605923 B1 EP2605923 B1 EP 2605923B1
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EP
European Patent Office
Prior art keywords
pneumatic spring
piston
damper cylinder
collar
elastomer body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP11727664.2A
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German (de)
French (fr)
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EP2605923A1 (en
Inventor
Thomas Eike
Jens Uwe Gleu
Andreas Nessel
Dirk Rosner
Holger Oldenettel
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Continental Teves AG and Co OHG
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Continental Teves AG and Co OHG
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Publication of EP2605923A1 publication Critical patent/EP2605923A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F16F9/0227—Telescopic characterised by the piston construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
    • B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
    • B60G15/14—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper the damper being connected to the stub axle and the spring being arranged around the damper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/05—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
    • F16F9/057—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type characterised by the piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/30—Spring/Damper and/or actuator Units
    • B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
    • B60G2202/314—The spring being a pneumatic spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/126—Mounting of pneumatic springs
    • B60G2204/1262—Mounting of pneumatic springs on a damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/40—Constructional features of dampers and/or springs
    • B60G2206/42—Springs
    • B60G2206/424—Plunger or top retainer construction for bellows or rolling lobe type air springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/73—Rubber; Elastomers

Definitions

  • the invention relates to an air spring strut, so an air spring damper assembly for a vehicle with a at least partially enclosed by an air bag of elastomeric material working chamber and a centrally and at least partially disposed within the working chamber telescopic damper, which is designed as a damper cylinder housing with a inner damping piston and a piston rod connected to the damping piston, wherein the air spring bellows is attached at its one end to the air spring cover and at its other end to form a roll fold on a connected to the damper cylinder air spring piston and can roll on the outside thereof
  • the air spring cover and the piston rod on the one hand are usually connected to the body via a common fastening system, while the damper cylinder is connected to the chassis, i. the unsprung mass is connected.
  • Struts with air springs are used today especially in passenger cars as a particularly comfortable suspension elements and provide a comfortable ride on a suspension that can be adjusted depending on the road conditions between a "soft" and “hard” suspension behavior.
  • An air spring system or level control system consists of the air spring and damper units comprising air spring legs for each wheel or at least for each axle, from the air supply system with a compressor, a memory, a regenerable dryer, as well as other switchable or permanently set pneumatic controls and has this to an electronic control usually on
  • the airsprings of the prior art are known to be sensitive to movements or deflections caused by lateral forces, i. by chassis forces normal to the axis of the air springs.
  • the housing ie the damper cylinder of the shock absorber on a welded collar on which the provided with a corresponding flange rolling piston is connected via a vulcanized ring part made of elastomeric material.
  • the elastic ring allows a certain wobble of the air spring piston to the damper cylinder, but without reducing the risk of increased frictional wear by kinking to the desired extent.
  • the DE 199 08 607 B4 discloses an air spring strut of the generic type, in which the air spring cover has a concentric inner guide sleeve which cooperates with a arranged on the bellows-side end of the air spring piston guide ring to Support lateral forces.
  • the reduction or the collection of kinking movements, however, is paid for here by an increased number of components.
  • the object was to provide an air spring strut, which can also absorb transverse forces easily and thus has wheel-guiding properties, which is inexpensive to manufacture by a simple design and which the transmission of vibrations or natural frequencies resulting from the action of transverse forces or the transmission of Rolling noise reduced to the vehicle interior.
  • the air spring piston is connected at its upper end and above the rolling fold by an elastic bearing with the damper cylinder.
  • the elastic bearing consists of an elastomeric body which is provided between a collar located on the damper cylinder axially outwardly projecting collar and arranged on the air spring piston axially inwardly projecting flange.
  • the collar located on the damper cylinder is located below the piston rod end of the damper cylinder.
  • a further advantageous embodiment is that the elastomeric body as a substantially annular hollow cone portion and the adjacent flange and collar surfaces are complementary thereto. This results in an equally secure power transmission in the axial and radial directions of the air spring strut / damper, so that so two functions can be realized in a bearing component.
  • the elastomeric body is made of rubber. Rubber elements can also be adjusted by different mixtures and by the addition of reinforcing layers or fibers of different materials arbitrarily in their strength and spring property.
  • a further advantageous embodiment is that the elastomeric body is connected to the flange and / or to the collar by vulcanization. This results in a very simple and extremely secure connection between the existing metal or plastic collar and flange parts and a rubber body / elastomer body.
  • a further advantageous embodiment is that the elastomeric body is connected by a positive tongue and groove connection to the flange and / or the collar. This can serve both as an additional and as an exclusive measure of attachment.
  • the rubber bearing is made as a separate part and then with rolling piston and damper, i. Flange and the collar are installed. Through undercuts in the rolling piston or flange or on the damper cylinder or collar rubber mount z. B. buttoned, so that a transport safety device or a security against removal arises.
  • a further advantageous embodiment is that the air spring piston is supported at its lower end by a further elastomeric body on the damper cylinder.
  • a further advantageous embodiment is that in the region of the formed at the upper end of the air spring piston connection between the air spring piston and damper cylinder, a seal is arranged.
  • the seal between rolling piston and damper cylinder can also be taken over by the rubber bearing itself, with z.
  • a seal is arranged in the region of the further elastomeric body at the lower end of the air spring piston.
  • a further advantageous embodiment is that the elastomeric body arranged between the collar of the damper cylinder and the flange of the air spring piston is formed as a segment ring.
  • the elastomeric body arranged between the collar of the damper cylinder and the flange of the air spring piston is formed as a segment ring.
  • the Fig. 1 shows an air spring strut 1 for a passenger car.
  • the air spring bellows 2 is made of rubber reinforced with reinforcements and encloses the working chamber 3.
  • Also centrally within the working chamber of the telescopic damper 4 is arranged, designed as a damper cylinder 5 housing with an internal damping piston not shown here and a connected to the damping piston piston rod. 6 having.
  • the air spring bellows 2 is attached at its one upper end to the air spring cover 7 and at its other lower end to form a rolled fold 8 on a connected to the damper cylinder 5 air spring piston 9, on the outside of the air bag can roll.
  • the air spring piston 9 is connected at its upper end and above the rolling fold 8 by an elastic bearing 10 with the damper cylinder 5.
  • the elastic bearing 10 consists of an elastomeric body 11, here a rubber body which is provided between an axially outwardly projecting collar 12 located on the damper cylinder 5 and an axially inwardly projecting flange 13 arranged on the air spring piston 9.
  • the collar 12 located on the damper cylinder is arranged below the piston rod end 14 of the damper cylinder 5.
  • the located on the damper cylinder 5 collar 12 has been placed on a circumferential shoulder of the damper cylinder and then welded.
  • the elastomeric body / rubber body 11 is formed as a ring-shaped hollow cone portion of greater thickness.
  • the adjacent flange and collar surfaces of the outwardly projecting collar 12 and the inwardly projecting flange 13 are complementary thereto formed and vulcanized.
  • Fig. 2 shows a central section to the left of the center line of another embodiment of an air spring strut according to the invention for a passenger car, in which the air spring piston 9 is supported at its lower end 15 by a further elastomeric body 16 made of rubber on the damper cylinder 5. In the area of the rubber body 16, a seal 17 is arranged at the lower end 15 of the air spring piston.
  • the air spring bellows 2 is supported here with an outer guide 18.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)

Description

Die Erfindung betrifft ein Luftfederbein, also eine Luftfeder-Dämpfer-Anordnung für ein Fahrzeug mit einer von einem Luftfederbalg aus elastomerem Material mindestens teilweise umschlossenen Arbeitskammer und mit einem zentrisch und mindestens teilweise innerhalb der Arbeitskammer angeordnetem teleskopierbaren Dämpfer, der ein als Dämpferzylinder ausgebildetes Gehäuse mit einem innenliegenden Dämpfungskolben und eine an den Dämpfungskolben angebundene Kolbenstange aufweist, wobei der Luftfederbalg an seinem einen Ende am Luftfederdeckel und an seinem anderen Ende unter Bildung einer Rollfalte an einem mit dem Dämpferzylinder verbundenen Luftfederkolben befestigt ist und auf dessen Außenseite abrollen kannThe invention relates to an air spring strut, so an air spring damper assembly for a vehicle with a at least partially enclosed by an air bag of elastomeric material working chamber and a centrally and at least partially disposed within the working chamber telescopic damper, which is designed as a damper cylinder housing with a inner damping piston and a piston rod connected to the damping piston, wherein the air spring bellows is attached at its one end to the air spring cover and at its other end to form a roll fold on a connected to the damper cylinder air spring piston and can roll on the outside thereof

Der Luftfederdeckel und die Kolbenstange einerseits sind üblicherweise über ein gemeinsames Befestigungssystem mit der Karosserie verbunden, während der Dämpferzylinder andererseits mit dem Fahrwerk, d.h. der ungefederten Masse verbunden ist.The air spring cover and the piston rod on the one hand are usually connected to the body via a common fastening system, while the damper cylinder is connected to the chassis, i. the unsprung mass is connected.

Federbeine mit Luftfedern dienen heute insbesondere in Personenkraftwagen als besonders komfortable Federungselemente und sorgen für ein angenehmes Fahrgefühl bei einer Federung, die je nach Straßenverhältnissen zwischen einem "weichen" und "harten" Federungsverhalten angepasst werden kann. Ein Luftfedersystem oder Niveauregelsystem besteht dabei aus den die Luftfeder- und Dämpfereinheiten umfassenden Luftfederbeinen für jedes Rad oder mindestens für jede Achse, aus der Luftversorgungsanlage mit einem Verdichter, einem Speicher, einem regenerierbaren Trockner, sowie aus weiteren schaltbaren oder festeingestellten pneumatischen Steuerelementen und weist dazu in aller Regel eine elektronische Steuerung aufStruts with air springs are used today especially in passenger cars as a particularly comfortable suspension elements and provide a comfortable ride on a suspension that can be adjusted depending on the road conditions between a "soft" and "hard" suspension behavior. An air spring system or level control system consists of the air spring and damper units comprising air spring legs for each wheel or at least for each axle, from the air supply system with a compressor, a memory, a regenerable dryer, as well as other switchable or permanently set pneumatic controls and has this to an electronic control usually on

Die Luftfederbeine im Stand der Technik sind bekanntermaßen empfindlich gegenüber Bewegungen oder Auslenkungen, die durch Querkräfte verursacht werden, d.h. durch Fahrwerkskräften normal zur Achse der Luftfedern.The airsprings of the prior art are known to be sensitive to movements or deflections caused by lateral forces, i. by chassis forces normal to the axis of the air springs.

Insbesondere bei längeren Luftfederbeinen führen einwirkende Querkräfte zu einer sehr geringen, aber doch messbaren Knickbewegung, bei der Stoßdämpfer und Abrollkolben bzw. Rollbalg gegeneinander verschwenkt werden. Wird hier keine Vorsorge zur Kompensation solcher Knickbewegungen getroffen oder werden keine entsprechenden Führungen vorgesehen, so kann es durch solche Bewegungen und Kräfte innerhalb der Bauteile des Luftfederbeins zu erhöhten reibenden Kontakten und damit zu größerem Verschleiß kommen. Die Konstruktion der Luftfederbeine muss daher so ausgelegt werden, dass solche Bewegungen ausgeglichen werden können, ohne dass Querkräfte im Federbein Reibverschleiß an den Bauteile des Federbeins erzeugen.In particular, with longer air spring legs acting transverse forces lead to a very small, but measurable kinking movement, are pivoted against each other in the shock absorber and rolling piston or rolling bellows. If no provision is made here to compensate for such bending movements or if no corresponding guides are provided, such movements and forces within the components of the air spring strut can lead to increased frictional contacts and thus to greater wear. The design of the airsprings must therefore be designed so that such movements can be compensated without transverse forces in the strut generate frictional wear on the components of the shock absorber.

Im Stand der Technik sind hierzu bereits Lösungen offenbart worden, beispielsweise durch die DE 195 08 980 C1 . Bei dem dort gezeigten Luftfederbein weist das Gehäuse, d.h. der Dämpferzylinder des Stoßdämpfers einen angeschweißten Kragen auf, an dem der mit einem entsprechenden Flansch versehene Abrollkolben über ein anvulkanisiertes Ringteil aus elastomerem Material angebunden ist. Der elastische Ring ermöglicht eine gewisse Taumelbeweglichkeit des Luftfederkolbens zum Dämpferzylinder, ohne jedoch die Gefahr von erhöhtem Reibverschleiß durch Knickbewegungen in dem gewünschten Maße zu mindern.In the prior art solutions have already been disclosed for this purpose, for example by the DE 195 08 980 C1 , In the air spring strut shown there, the housing, ie the damper cylinder of the shock absorber on a welded collar on which the provided with a corresponding flange rolling piston is connected via a vulcanized ring part made of elastomeric material. The elastic ring allows a certain wobble of the air spring piston to the damper cylinder, but without reducing the risk of increased frictional wear by kinking to the desired extent.

Die DE 199 08 607 B4 offenbart ein Luftfederbein der gattungsgemäßen Art, bei dem der Luftfederdeckel eine konzentrische innere Führungshülse aufweist, die mit einem am balgseitigen Ende des Luftfederkolbens angeordneten Führungsring zusammenwirkt, um Querkräfte abzustützen. Das Reduzieren bzw. das Auffangen von Knickbewegungen wird hier allerdings durch eine erhöhte Anzahl von Bauteilen erkauft.The DE 199 08 607 B4 discloses an air spring strut of the generic type, in which the air spring cover has a concentric inner guide sleeve which cooperates with a arranged on the bellows-side end of the air spring piston guide ring to Support lateral forces. The reduction or the collection of kinking movements, however, is paid for here by an increased number of components.

Als zusätzlicher Effekt ergeben sich bei den gattungsgemäßen Luftfederbeinen im Stand der Technik je nach Abmessungen bzw. Massen des Systems gerade durch die Einwirkung von Querkräften Schwingungen und Eigenfrequenzen, die nicht nur akustisch als störend empfunden werden, sondern die sich auch auf den Fahrkomfort negativ auswirken können.As an additional effect arise in the generic air spring struts in the art, depending on the dimensions or masses of the system just by the action of lateral forces oscillations and natural frequencies that are not only acoustically disturbing, but can also affect the ride comfort negative ,

Für die Erfindung bestand also die Aufgabe, ein Luftfederbein bereitzustellen, welches auch Querkräfte problemlos aufnehmen kann und somit radführende Eigenschaften besitzt, welches durch eine einfache Bauweise kostengünstig herzustellen ist und welches die Übertragung von durch Einwirkung von Querkräften entstehenden Schwingungen oder Eigenfrequenzen bzw. die Übertragung von Abrollgeräuschen ins Fahrzeuginnere reduziert.So for the invention, the object was to provide an air spring strut, which can also absorb transverse forces easily and thus has wheel-guiding properties, which is inexpensive to manufacture by a simple design and which the transmission of vibrations or natural frequencies resulting from the action of transverse forces or the transmission of Rolling noise reduced to the vehicle interior.

Gelöst wird diese Aufgabe durch die Merkmale des Hauptanspruchs. Weitere vorteilhafte Ausbildungen sind in den Unteransprüchen offenbart.This object is achieved by the features of the main claim. Further advantageous embodiments are disclosed in the subclaims.

Dabei ist der Luftfederkolben an seinem oberen Ende und oberhalb der Rollfalte durch ein elastisches Lager mit dem Dämpferzylinder verbunden. Das elastische Lager besteht aus einem elastomeren Körper, der zwischen einem am Dämpferzylinder befindlichen axial nach außen ragenden Kragen und einem am Luftfederkolben angeordneten axial nach innen ragenden Flansch vorgesehen ist. Zusätzlich ist der am Dämpferzylinder befindliche Kragen unterhalb des kolbenstangenseitigen Endes des Dämpferzylinders angeordnet.In this case, the air spring piston is connected at its upper end and above the rolling fold by an elastic bearing with the damper cylinder. The elastic bearing consists of an elastomeric body which is provided between a collar located on the damper cylinder axially outwardly projecting collar and arranged on the air spring piston axially inwardly projecting flange. In addition, the collar located on the damper cylinder is located below the piston rod end of the damper cylinder.

Durch eine solche funktionale und geometrische Ausbildung der Anbindung von Dämpferzylinder und Luftfederkolben, insbesondere dadurch, dass das elastische Element im oberen Bereich des Kolbens - insbesondere oberhalb der Rollfalte - angeordnet ist, wird der Drehpunkt, um den der Kolben kippen kann, über den Angriffspunkt der Luftfederkraft verschoben, d.h. über den Angriffspunkt der auf den Luftfederkolben wirkenden und aus dem Druck im Arbeitsraum resultierenden Kräfte. Damit ergibt sich aufgrund des entstehenden geringen Hebelarmes zwischen Drehpunkt und dem Angriffspunkt der Luftfederkraft eine Anordnung, die unter allen Betriebsbedingungen und auch für kompakte Kolben gegen Ausknicken stabil ist, also Knickbewegungen nur einem akzeptabel geringen Rahmen zulässt. Bei der hier vorliegenden konstruktiven Umsetzung wird der Kolben im oberen Bereich verlängert und stützt sich in diesem Bereich auf dem Gummilager ab, ist aber insgesamt unterhalb des kolbenstangenseitigen Endes des Dämpferzylinders an letzterem angebunden. Dadurch können auch die Vorteile der elastischen Lagerung zur akustischen Isolierung, genutzt werden, ohne dass die kompakte Bauform des Kolbens aufgegeben werden muss.By such a functional and geometric design of the connection of damper cylinder and air spring piston, in particular by the fact that the elastic element in the upper region of the piston - is arranged - in particular above the rolling fold - the pivot point about which the piston can tilt over the point of the Suspended air spring force, ie on the point of attack on the air spring piston acting and resulting from the pressure in the work space forces. This results due to the resulting low lever arm between the pivot point and the point of the air spring force an arrangement that is stable under all operating conditions and for compact pistons against buckling, so kinking only allows an acceptably small frame. In the present constructive implementation of the piston is extended in the upper region and is supported in this area on the rubber bearing, but is connected to the latter overall below the piston rod end of the damper cylinder. As a result, the advantages of elastic storage for acoustic insulation, can be used without the compact design of the piston must be abandoned.

Eine vorteilhafte Weiterbildung besteht darin, dass der am Dämpferzylinder befindliche Kragen auf den Dämpferzylinder aufgeschweißt oder luftdicht aufgepresst ist. Solche einfachen Herstell- und Verbindungsverfahren sind sehr kostengünstig und hier ohne Weiteres ausreichend. Der am Luftfederkolben angeordnete Flansch kann leicht durch anbördeln oder anrollen hergestellt werden.An advantageous development is that the collar located on the damper cylinder is welded onto the damper cylinder or pressed air-tight. Such simple manufacturing and connection methods are very cost-effective and readily sufficient here. The arranged on the air spring piston flange can be easily made by flanging or rolling.

Eine weitere vorteilhafte Ausbildung besteht darin, dass der elastomere Körper als im Wesentlichen ringförmiger Hohlkegelabschnitt und die anliegenden Flansch- und Kragenflächen komplementär dazu ausgebildet sind. Dadurch ergibt sich eine gleichermaßen sichere Kraftübertragung in axialer und radialer Richtung des Luftfederbeins/Dämpfers, sodass damit zwei Funktionen in einem Lagerbauteil realisiert werden.A further advantageous embodiment is that the elastomeric body as a substantially annular hollow cone portion and the adjacent flange and collar surfaces are complementary thereto. This results in an equally secure power transmission in the axial and radial directions of the air spring strut / damper, so that so two functions can be realized in a bearing component.

Eine weitere vorteilhafte, weil im Hinblick auf das Material sehr einfache Ausbildung besteht darin, dass der elastomere Körper aus Gummi besteht. Gummielemente können zudem durch unterschiedliche Mischungen und durch die Zugabe von Verstärkungslagen oder Fasern aus den unterschiedlichsten Materialien beliebig in ihrer Festigkeit und Federeigenschaft eingestellt werden.Another advantageous, because in terms of the material very simple training is that the elastomeric body is made of rubber. Rubber elements can also be adjusted by different mixtures and by the addition of reinforcing layers or fibers of different materials arbitrarily in their strength and spring property.

Eine weitere vorteilhafte Ausbildung besteht darin, dass der elastomere Körper mit dem Flansch und/oder mit dem Kragen durch Vulkanisation verbunden ist. Damit ergibt sich eine sehr einfache und überaus sichere Verbindung zwischen den aus Metall oder Kunststoff bestehenden Kragen- und Flanschteilen und einem Gummikörper/Elastomerkörper.A further advantageous embodiment is that the elastomeric body is connected to the flange and / or to the collar by vulcanization. This results in a very simple and extremely secure connection between the existing metal or plastic collar and flange parts and a rubber body / elastomer body.

Eine weitere vorteilhafte Ausbildung besteht darin, dass der elastomere Körper durch eine formschlüssige Nut-Feder-Verbindung an den Flansch und/oder den Kragen angeschlossen ist. Dies kann sowohl als zusätzliche als auch als ausschließlich Maßnahme der Befestigung dienen. So kann z. B. das Gummilager als separates Teil hergestellt und dann mit Abrollkolben und Dämpfer, d.h. Flansch und den Kragen verbaut werden. Durch Hinterschnitte im Abrollkolben bzw. Flansch oder am Dämpferzylinder bzw. Kragen kann das Gummilager z. B. eingeknöpft werden, so dass eine Transportsicherung bzw. eine Sicherung gegen Abziehen entsteht.A further advantageous embodiment is that the elastomeric body is connected by a positive tongue and groove connection to the flange and / or the collar. This can serve both as an additional and as an exclusive measure of attachment. So z. For example, the rubber bearing is made as a separate part and then with rolling piston and damper, i. Flange and the collar are installed. Through undercuts in the rolling piston or flange or on the damper cylinder or collar rubber mount z. B. buttoned, so that a transport safety device or a security against removal arises.

Eine weitere vorteilhafte Ausbildung besteht darin, dass der Luftfederkolben an seinem unteren Ende durch einen weiteren elastomeren Körper am Dämpferzylinder abgestützt ist. So kann je nach Kraftangriffspunkten auch ein direktes Auffangen von Querkräften oder etwa eine geeignete Aufteilung bezüglich der Aufnahme von Anteilen der auf das Luftfederbein wirkenden Axial- und Querkräfte zwischen oberer Verbindung und unterer Abstützung erfolgen. Dies kann z.B. bei der Aufnahme von Lenkkräften wichtig sein.A further advantageous embodiment is that the air spring piston is supported at its lower end by a further elastomeric body on the damper cylinder. Thus, depending on the points of application of force, direct interception of transverse forces or, for example, a suitable division with regard to the absorption of portions of the axial and transverse forces acting on the pneumatic strut between the upper connection and the lower support can take place. This can e.g. be important in receiving steering forces.

Eine weitere vorteilhafte Ausbildung besteht darin, dass im Bereich der am oberen Ende des Luftfederkolbens ausgebildeten Verbindung zwischen Luftfederkolben und Dämpferzylinder eine Dichtung angeordnet ist. So kann die Abdichtung zwischen Abrollkolben und Dämpferzylinder auch durch das Gummilager selbst übernommen werden, wobei z. B. ringförmig umlaufende Kanten auf der Oberfläche von Abrollkolben/Flansch oder Dämpferzylinder / Kragen oder auf dem elastomeren Körper aufgebracht werden.A further advantageous embodiment is that in the region of the formed at the upper end of the air spring piston connection between the air spring piston and damper cylinder, a seal is arranged. Thus, the seal between rolling piston and damper cylinder can also be taken over by the rubber bearing itself, with z. B. annular peripheral edges on the surface of rolling piston / flange or damper cylinder / collar or be applied to the elastomeric body.

Eine weitere in gleicher Weise vorteilhafte Ausbildung besteht darin, dass im Bereich des weiteren elastomeren Körpers am unteren Ende des Luftfederkolbens eine Dichtung angeordnet ist. Bei einer solchen Ausführung lässt sich auch eine geeignete Aufteilung bezüglich der Aufnahme Kräften und der Bereitstellung der Dichtfunktion zwischen oberer Verbindung und unterer Abstützung erreichen.Another equally advantageous embodiment is that in the region of the further elastomeric body at the lower end of the air spring piston, a seal is arranged. With such an embodiment, a suitable distribution with respect to the absorption of forces and the provision of the sealing function between the upper connection and the lower support can also be achieved.

Eine weitere vorteilhafte Ausbildung besteht darin, dass der zwischen Kragen des Dämpferzylinders und Flansch des Luftfederkolbens angeordnete elastomere Körper als Segmentring ausgebildet ist. So können etwa drei im Winkelabstand von 120° angeordnete Segmente, also eigentlich drei "einzelne" und ggf. über einen Ringflansch miteinander verbundene elastomere Körper in Form von Hohlkegelausschnitten ausreichen, um Quer und Längskräfte bei leichteren Fahrzeugen aufzufangen. Dadurch werden auch bei leichtester Bauweise die gewünschten Funktionen bereitgestellt.A further advantageous embodiment is that the elastomeric body arranged between the collar of the damper cylinder and the flange of the air spring piston is formed as a segment ring. Thus, about three arranged at an angular distance of 120 ° segments, so actually three "single" and possibly via an annular flange interconnected elastomeric body in the form of hollow cone cutouts are sufficient to absorb transverse and longitudinal forces in lighter vehicles. As a result, the desired functions are provided even with the lightest construction.

Anhand eines Ausführungsbeispiels soll die Erfindung näher erläutert werden. Es zeigen

Fig. 1
ein erfindungsgemäßes Luftfederbein für einen Personenkraftwagen
Fig. 2
ausschnittsweise eine weitere Ausführung eines erfindungsgemäßes Luftfederbeins für einen Personenkraftwagen
Reference to an embodiment of the invention will be explained in more detail. Show it
Fig. 1
an inventive air spring strut for a passenger car
Fig. 2
a detail of another embodiment of an inventive air spring strut for a passenger car

Die Fig. 1 zeigt ein Luftfederbein 1 für einen Personenkraftwagen. Der Luftfederbalg 2 besteht aus mit Festigkeitsträgern verstärktem Gummi und umschließt die Arbeitskammer 3. Ebenfalls zentrisch innerhalb der Arbeitskammer ist der teleskopierbare Dämpfer 4 angeordnet, der ein als Dämpferzylinder 5 ausgebildetes Gehäuse mit einem hier nicht näher dargestellten innenliegenden Dämpfungskolben und eine an den Dämpfungskolben angebundene Kolbenstange 6 aufweist.The Fig. 1 shows an air spring strut 1 for a passenger car. The air spring bellows 2 is made of rubber reinforced with reinforcements and encloses the working chamber 3. Also centrally within the working chamber of the telescopic damper 4 is arranged, designed as a damper cylinder 5 housing with an internal damping piston not shown here and a connected to the damping piston piston rod. 6 having.

Der Luftfederbalg 2 ist an seinem einen oberen Ende am Luftfederdeckel 7 und an seinem anderen unteren Ende unter Bildung einer Rollfalte 8 an einem mit dem Dämpferzylinder 5 verbundenen Luftfederkolben 9 befestigt, auf dessen Außenseite der Luftfederbalg abrollen kann.The air spring bellows 2 is attached at its one upper end to the air spring cover 7 and at its other lower end to form a rolled fold 8 on a connected to the damper cylinder 5 air spring piston 9, on the outside of the air bag can roll.

Der Luftfederkolben 9 ist an seinem oberen Ende und oberhalb der Rollfalte 8 durch ein elastisches Lager 10 mit dem Dämpferzylinder 5 verbunden.The air spring piston 9 is connected at its upper end and above the rolling fold 8 by an elastic bearing 10 with the damper cylinder 5.

Das elastische Lager 10 besteht aus einem elastomeren Körper 11, hier einem Gummikörper, der zwischen einem am Dämpferzylinder 5 befindlichen axial nach außen ragenden Kragen 12 und einem am Luftfederkolben 9 angeordneten axial nach innen ragenden Flansch 13 vorgesehen ist.The elastic bearing 10 consists of an elastomeric body 11, here a rubber body which is provided between an axially outwardly projecting collar 12 located on the damper cylinder 5 and an axially inwardly projecting flange 13 arranged on the air spring piston 9.

Der am Dämpferzylinder befindliche Kragen 12 ist unterhalb des kolbenstangenseitigen Endes 14 des Dämpferzylinders 5 angeordnet. Der am Dämpferzylinder 5 befindliche Kragen 12 ist auf einen umlaufenden Absatz des Dämpferzylinders aufgesetzt und danach verschweißt worden.The collar 12 located on the damper cylinder is arranged below the piston rod end 14 of the damper cylinder 5. The located on the damper cylinder 5 collar 12 has been placed on a circumferential shoulder of the damper cylinder and then welded.

Der elastomere Körper/ Gummikörper 11 ist als ringförmiger Hohlkegelabschnitt größerer Dicke ausgebildet. Die anliegenden Flansch- und Kragenflächen des nach außen ragenden Kragen 12 und des nach innen ragenden Flansch 13 sind komplementär dazu ausgebildet und anvulkanisiert.The elastomeric body / rubber body 11 is formed as a ring-shaped hollow cone portion of greater thickness. The adjacent flange and collar surfaces of the outwardly projecting collar 12 and the inwardly projecting flange 13 are complementary thereto formed and vulcanized.

Fig. 2 zeigt einen mittleren Ausschnitt links der Mittellinie einer anderen Ausführungsform eines erfindungsgemäßen Luftfederbeins für einen Personenkraftwagen, bei dem der Luftfederkolben 9 an seinem unteren Ende 15 durch einen weiteren elastomeren Körper 16 aus Gummi am Dämpferzylinder 5 abgestützt ist. Im Bereich des Gummikörpers 16 ist am unteren Ende 15 des Luftfederkolbens eine Dichtung 17 angeordnet. Der Luftfederbalg 2 ist hier mit einer Außenführung 18 abgestützt. Fig. 2 shows a central section to the left of the center line of another embodiment of an air spring strut according to the invention for a passenger car, in which the air spring piston 9 is supported at its lower end 15 by a further elastomeric body 16 made of rubber on the damper cylinder 5. In the area of the rubber body 16, a seal 17 is arranged at the lower end 15 of the air spring piston. The air spring bellows 2 is supported here with an outer guide 18.

BezugszeichenlisteLIST OF REFERENCE NUMBERS (Teil der Beschreibung)(Part of the description)

11
LuftfederbeinAir spring strut
22
Luftfederbalgsuspension bellows
33
Arbeitskammerworking chamber
44
Dämpferdamper
55
Dämpferzylinderdamper cylinder
66
Kolbenstangepiston rod
77
LuftfederdeckelAir spring cover
88th
Rollfalterolling fold
99
LuftfederkolbenAir spring piston
1010
Elastisches LagerElastic bearing
1111
Elastomerer Körper / GummikörperElastomeric body / rubber body
1212
Kragencollar
1313
Flanschflange
1414
Kolbenstangenseitiges EndePiston rod end
1515
Unteres Ende des Luftfederkolbens 9Lower end of the air spring piston 9
1616
Gummikörperrubber body
1717
Dichtungpoetry
1818
Außenführungexternal guide

Claims (10)

  1. Pneumatic spring strut (1) for a vehicle, having a working chamber (3) which is at least partially enclosed by a pneumatic spring bellows (2) composed of elastomeric material and having a telescopic damper (4) which is arranged centrally and at least partially within the working chamber (3), said damper comprising a housing, which is formed as a damper cylinder (5) and which has a damping piston situated at the inside, and comprising a piston rod (6) which is connected to the damping piston, wherein the pneumatic spring bellows (2) is fastened at one end thereof to the pneumatic spring cover (7) and is fastened at the other end thereof, so as to form a roll fold (8), to a pneumatic spring piston (9) connected to the damper cylinder (5) and can roll on the outer side of said pneumatic spring piston, characterized in that
    - the pneumatic spring piston (9) is connected, at its top end and above the roll fold (8), to the damper cylinder by means of an elastic bearing (10),
    - the elastic bearing (10) is composed of an elastomer body (11) which is provided between an axially outwardly projecting collar (12), which is situated on the damper cylinder (5), and an axially inwardly projecting flange (13), which is arranged on the pneumatic spring piston (9),
    - the collar (12) situated on the damper cylinder (5) is arranged below the piston-rod-side end (14) of the damper cylinder (5).
  2. Pneumatic spring strut according to Claim 1, in which the collar (12) situated on the damper cylinder (5) is welded to or pressed in an air-tight manner onto the damper cylinder.
  3. Pneumatic spring strut according to Claim 1 or 2, in which the elastomer body (11) is formed as a substantially annular hollow conical portion, and the abutting flange and collar surfaces are of a form complementary thereto.
  4. Pneumatic spring strut according to one of Claims 1 to 3, in which the elastomer body (11) is composed of rubber.
  5. Pneumatic spring strut according to Claim 5, in which the elastomer body (11) is connected to the flange (13) and/or to the collar (12) by vulcanization.
  6. Pneumatic spring strut according to one of Claims 1 to 5, in which the elastomer body (11) is connected to the flange and/or to the collar by means of a positively locking tongue-and-groove connection.
  7. Pneumatic spring strut according to one of Claims 1 to 6, in which the pneumatic spring strut (9), at its lower end (15), is supported on the damper cylinder (5) by a further elastomer body (16).
  8. Pneumatic spring strut according to one of Claims 1 to 7, in which a seal is arranged in the region of the connection, formed at the upper end of the pneumatic spring piston (9), between the pneumatic spring piston and the damper cylinder.
  9. Pneumatic spring strut according to Claim 7, in which a seal (17) is arranged in the region of the further elastomer body (16) at the lower end (15) of the pneumatic spring piston (9).
  10. Pneumatic spring strut according to one of Claims 1 to 9, in which the elastomer body (11) arranged between the collar (12) of the damper cylinder (5) and the flange (13) of the pneumatic spring piston (9) is in the form of a segmented ring.
EP11727664.2A 2010-08-20 2011-06-01 Air strut with elastic piston mounting Active EP2605923B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010037096A DE102010037096A1 (en) 2010-08-20 2010-08-20 Air strut with elastic piston bearing
PCT/EP2011/059123 WO2012022509A1 (en) 2010-08-20 2011-06-01 Pneumatic spring strut having a resilient piston bearing

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EP2605923A1 EP2605923A1 (en) 2013-06-26
EP2605923B1 true EP2605923B1 (en) 2014-04-30

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US (1) US8991798B2 (en)
EP (1) EP2605923B1 (en)
CN (1) CN103079847B (en)
DE (1) DE102010037096A1 (en)
WO (1) WO2012022509A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011086415B4 (en) 2011-02-09 2022-01-05 Continental Teves Ag & Co. Ohg Elastically mounted air spring roll-off piston
DE102013113737A1 (en) 2013-12-10 2015-06-11 Trelleborgvibracoustic Gmbh Air suspension component
JP6438258B2 (en) * 2014-09-30 2018-12-12 株式会社ショーワ Reaction force adjusting member and suspension
DE102015119579B4 (en) * 2015-11-12 2021-08-12 Dunlop Systems And Components Air suspension unit
DE102018207372B4 (en) * 2018-05-11 2020-07-09 Thyssenkrupp Ag Adapter piece for the frictional connection of a damper tube and an air spring piston, air spring damper system and method for producing an air spring damper system
DE102018215382A1 (en) * 2018-09-11 2020-03-12 Continental Teves Ag & Co. Ohg Air spring with elastic clamping
DE102019214908A1 (en) * 2019-09-27 2021-04-01 Continental Teves Ag & Co. Ohg Air suspension strut with an anti-twist device for a rolling piston
DE102021103856A1 (en) * 2021-02-18 2022-08-18 Vibracoustic Se Air spring and vehicle comprising the air spring

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980441A (en) * 1958-11-28 1961-04-18 Gen Motors Corp Fluid suspension unit
US4206907A (en) * 1978-06-05 1980-06-10 General Motors Corporation Suspension strut with pneumatic spring
US4555096A (en) * 1980-11-20 1985-11-26 Ford Motor Company Pneumatic spring and strut assembly
US4655438A (en) * 1985-12-23 1987-04-07 General Motors Corporation Hydraulically damped dual sleeve air spring suspension
US5135203A (en) * 1986-06-23 1992-08-04 Monroe Auto Equipment Company Vehicle leveling shock absorber assembly
US4802657A (en) * 1986-06-23 1989-02-07 Monroe Auto Equipment Company Vehicle leveling shock absorber assembly
US4989844A (en) * 1986-06-23 1991-02-05 Monroe Auto Equipment Company Vehicle leveling shock absorber assembly
US4712776A (en) * 1986-07-14 1987-12-15 The Firestone Tire & Rubber Company Air spring suspension system
US5009401A (en) * 1986-07-14 1991-04-23 Bridgestone/Firestone, Inc. Air spring suspension system with dual path isolation
DE19508980C2 (en) 1995-03-13 2000-06-15 Daimler Chrysler Ag Air strut
DE19908607B4 (en) 1999-02-27 2005-05-12 Daimlerchrysler Ag Air strut for suspension of motor vehicles
DE10009912C1 (en) 2000-03-01 2001-09-06 Continental Ag Pneumatic spring with two-part casing has elastic bearing in form of annular section of hollow ball
DE10111242C1 (en) * 2001-03-09 2002-08-08 Continental Ag Air spring strut
US6443436B1 (en) * 2001-05-29 2002-09-03 Tenneco Automotive Inc. Air spring assembly on shock absorber with combined seal
DE10200632B4 (en) * 2002-01-10 2004-05-27 Thyssenkrupp Bilstein Gmbh Air spring strut
US6827342B2 (en) * 2002-02-27 2004-12-07 Zf Sachs Ag Shock absorber
US20040026836A1 (en) * 2002-08-07 2004-02-12 Brookes Graham R. Vehicle suspension system
DE10336147B4 (en) * 2002-09-26 2006-04-20 Zf Sachs Ag vibration
DE10320501A1 (en) * 2003-05-08 2004-11-25 Continental Aktiengesellschaft Front axle suspension strut
DE102004020797A1 (en) 2004-04-28 2005-11-24 Continental Aktiengesellschaft Air spring for a motor vehicle
US8517357B2 (en) * 2009-06-19 2013-08-27 Firestone Industrial Products Company, Llc Gas spring and damper assembly
KR101094215B1 (en) * 2009-09-07 2011-12-14 주식회사 만도 Air supspension

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US20130147099A1 (en) 2013-06-13
DE102010037096A1 (en) 2012-02-23
CN103079847A (en) 2013-05-01
CN103079847B (en) 2015-12-16
WO2012022509A1 (en) 2012-02-23
US8991798B2 (en) 2015-03-31
EP2605923A1 (en) 2013-06-26

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